int groupExist(char *grp);
int userExist(char *usr);
int compareUID(int uid, char *userName);
int compareGID(int gid, char *groupName);
int compareUIDinGroup(int uid, char *groupName);
void scanDir(Resultat *resultat, char *path, char **users, char **groups, char **groups2, int nbUsers, int nbGroups, int nbGroups2);
